Why would I "back up" something that is not in dispute? You are more than capable of doing independent verification if you feel doubtful of any of my claims.

In fact I would suggest you verify even information you largely agree with, or at least have a reasonable level of confidence that it won't be totally invalidated by a simple internet search when you repeat it. That's the standard I and a good number of us here hold ourselves to, which is why folks that don't do that tend to have quite an adversarial experience when they find themselves in your place.